用javascript代码异步获取xml中的值

如题：

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参考http://topic.csdn.net/u/20090912/12/af0562a2-6869-48b8-a1a4-bc165c02fa4d.html
中我的回复
把xmlReportData.async = "false"; 改成xmlReportData.async = "true";就是异步

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或者http://topic.csdn.net/u/20090911/13/afedae08-8277-47d0-b481-2d1b27d49d63.html
中我的回复..

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引用

Index.html文件:
HTML code <scriptlanguage="javascript">var xmlDoc;function initialize()
{if(window.ActiveXObject)
    {
      xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
      xmlDoc.onreadystatechange=function()
      {if(xmlDoc.readyState==4)
        {
          handleXmlDoc();
        }
      }
      xmlDoc.load("data.xml");
    }elseif(document.implementation&&document.implementation.createDocument)
  {
    xmlDoc=document.implementation.createDocument('','',null);
    xmlDoc.onload=handleXmlDoc;
    xmlDoc.load("data.xml");
  }
}function handleXmlDoc()
{var root=xmlDoc.documentElement;var info=root.getElementsByTagName("info")[0];
  alert(info.getAttribute("type"));for(var